Study on reasonable gas extraction radius based on multi-index and multi-method
Energy Reports, 2022 The gas extraction radius is affected by coal seam gas pressure, borehole diameter, extraction time, extraction negative pressure and other factors. Under the coupling of different factors, the gas extraction radius of borehole is also different.
Fengfeng Yang +6 more
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Study on the influence mechanism of air leakage on gas extraction in extraction boreholes
Energy Exploration & Exploitation, 2022 Borehole leakage is an important cause of gas extraction failure. In order to study the influence mechanism of borehole leakage on gas extraction, the borehole air leakage mode was studied, and a mathematical model was established to describe the ...
Xuebo Zhang +3 more
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, 1974 With the recent escalation in the cost of crude oil the ability to produce low molecular weight ash-free products in high yield from coal has become increasingly important. An investigation has therefore been carried out to determine the potential of an extraction technique, gas extraction, within the field of coal processing.
Whitehead, John Charles.
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Research on combined gas extraction technology of high andbottom extraction lane in high gas mine
Gong-kuang zidonghua, 2021 In order to solve the problems of low extraction efficiency, low extraction concentration, poor permeability of coal seam and difficulty in drilling holes in the gas management of U-ventilated return working face of loose and low-permeability coal seams,
GAO Hong, YANG Hongwei
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Geothermal heat use to eliminate hydrate formations in oil deposit injection wells [PDF]
E3S Web of Conferences, 2021 The article is devoted to an actual issue: the development of internal downhole heat exchangers technology to combat hydration in injection wells. Purpose: development of conceptual solutions for the use of geothermal coolant in the internal well heat ...
Fyk Мykhailo +3 more
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Natural Gas Industry B, 2023 With the increasing global demand for oil and gas, the development of unconventional resources such as shale gas is becoming ever more important.
Tiankui Guo +6 more
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Technological scheme of the combined geothermal-hydrocarbon system for the production and storage of energy resources [PDF]
E3S Web of Conferences, 2021 The complex researches of schemes of extraction and storage of hydrocarbons and geothermal energy are executed in the work. In particular, according to the location, logistics and nature of the processes of generation, transportation, evacuation ...
Fyk Mykhailo I. +3 more
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Numeric simulation of the pulsation bottle for a reciprocating compressor in dynamic regime [PDF]
MATEC Web of Conferences, 2021 The pulsation bottles are mounted at the inlet and outlet of / from the reciprocating compressor cylinders to even out the gas parameters (pressure and temperature). They ensure stable working conditions in the compressor cylinders and eliminate / reduce
Pana Ion, Dinu Florinel
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Analyzing the Impact of Monetary Instruments on the Amount of Domestic Debt in the Context of Formulating and Solving the Problem of Modeling the Threshold Level of Debt Security [PDF]
Problemi Ekonomiki, 2023 The purpose of the article is illumination of the results of the carried out studies aimed at analyzing and quantifying the relationships between key monetary instruments and indicators of domestic debt in the context of determining the threshold levels ...
Pilko Andriy D., Chepyha Bohdan T.
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The Balance of Multi-phase Gathering and Transport Systems [PDF]
MATEC Web of Conferences, 2019 Natural gases are a mixture of hydrocarbons which are generally in a gaseous state. Due to the variation in transport parameters (pressure, temperature) and gas composition, there may be sectors where those appear in liquid state, the condensate.
Eparu Cristian Nicolae +3 more
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